From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
The incorrect timing of a Bensport J.1 camshaft balancing cam and requesting a drawing alteration.
| Identifier | ExFiles\Box 85\3\ scan0005 | |
| Date | 4th September 1933 | |
| X207 To E: from Hs{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer} Hs{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer}6/KT.4.9.33. CAMSHAFT BALANCING CAM - BENSPORT J.1. The timing of the above cam, as given on LeC.3563, is incorrect. For the timing to agree with the calculated position, the cam requires to be advanced 35° in the direction of its rotation, so that the keyway in the cam should be retarded by 35°. Will you please have the drawings altered so that future experimental cams are timed to agree with the calculated position. Hs{Lord Ernest Hives - Chair}/F.J.Hardy. | ||